/* scanf.c - scan a file. stdio.h *//* Copyright 1992-1993 Wind River Systems, Inc. *//*modification history--------------------01c,05mar93,jdi  documentation cleanup for 5.1.01b,20sep92,smb  documentation additions01a,29jul92,jcf  rewritten to usr fioScanV()	   +smb  taken from UCB stdio*//*DESCRIPTION * Copyright (c) 1990 The Regents of the University of California. * All rights reserved. * * This code is derived from software contributed to Berkeley by * Chris Torek. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * 1. Redistributions of source code must retain the above copyright *    notice, this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright *    notice, this list of conditions and the following disclaimer in the *    documentation and/or other materials provided with the distribution. * 3. All advertising materials mentioning features or use of this software *    must display the following acknowledgement: *	This product includes software developed by the University of *	California, Berkeley and its contributors. * 4. Neither the name of the University nor the names of its contributors *    may be used to endorse or promote products derived from this software *    without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF * SUCH DAMAGE.INCLUDE FILE: stdio.h, stdarg.hSEE ALSO: American National Standard X3.159-1989NOMANUAL*/#include "vxWorks.h"#include "stdarg.h"#include "fioLib.h"#include "private/stdioP.h"/******************************************************************************** scanf - read and convert characters from the standard input stream (ANSI)** This routine reads input from the standard input stream under the control* of the string <fmt>.  It is equivalent to fscanf() with an <fp> argument* of `stdin'.** INCLUDE FILES: stdio.h ** RETURNS:* The number of input items assigned, which can be fewer than provided for,* or even zero, in the event of an early matching failure; or EOF if an* input failure occurs before any conversion.** SEE ALSO: fscanf(), sscanf()*/int scanf    (    char const *  fmt,	/* format string */    ...			/* arguments to format string */    )    {    int     nArgs;    int     unget;    va_list vaList;	/* vararg list */    va_start (vaList, fmt);    nArgs = fioScanV (fmt, fgetc, (int) stdin, &unget, vaList);    va_end (vaList);    if (unget != -1)	ungetc (unget, stdin);    return (nArgs);    }